Categories:

Semi-structured and structured data functions (Cast)

AS_TIMESTAMP_*¶

Casts a VARIANT value to the respective timestamp value:

  • AS_TIMESTAMP_LTZ (value with local time zone)

  • AS_TIMESTAMP_NTZ (value with no time zone)

  • AS_TIMESTAMP_TZ (value with time zone)

See also:

AS_<object_type> , AS_DATE , AS_TIME

Syntax¶

AS_TIMESTAMP_LTZ( <variant_expr> )

AS_TIMESTAMP_NTZ( <variant_expr> )

AS_TIMESTAMP_TZ( <variant_expr> )
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Arguments¶

variant_expr

An expression that evaluates to a value of type VARIANT.

Returns¶

The function returns a value of a timestamp type or NULL:

  • If the type of the value in the variant_expr argument is a timestamp type, the function returns a value of same timestamp type.

  • If the type of the value in the variant_expr argument doesn’t match the type of the output value, the function returns NULL.

  • If the variant_expr argument is NULL, the function returns NULL.

Examples¶

Create a table and load data into it:

CREATE OR REPLACE TABLE as_timestamp_example (timestamp1 VARIANT);

INSERT INTO as_timestamp_example (timestamp1)
  SELECT TO_VARIANT(TO_TIMESTAMP_NTZ('2024-10-10 12:34:56'));
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Use the AS_TIMESTAMP_NTZ function in a query to cast a VARIANT value to a TIMESTAMP_NTZ value:

SELECT AS_TIMESTAMP_NTZ(timestamp1) AS timestamp_value
  FROM as_timestamp_example;
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+-------------------------+
| TIMESTAMP_VALUE         |
|-------------------------|
| 2024-10-10 12:34:56.000 |
+-------------------------+
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